Ration



J. WOLFF.

TALKING MACHINE. APPLICATION msn APR.15. 191s.

atented Nov. 11, 1919.

11.15111@ stirs.

JOSEPH WOLFF, OF BROOKLYN, NEW YORK, ASSIGNOR T42)l SONORA PHONOGRAPH CORPO- RATION, A CORPORATION F NEW YORK.

TLKNG-MACHINE.

Specicaton of Letters Patent.

Patenten Nov. u, 1919.

Application area April 15, 191s. semina. 91,340.

i provenient in Tallting-llachines, ot which the following is a specification.

My invention relates to talking machines, and more particularly to the recording and reproducing devices used therein, and has for its object to simplify and cheapen the construction thereof.

A further object is to so design the ap )aratus that the initial tension of the iaphragm may be adjusted within narrow limits and with absolute certainty.

These and further objects will more fully` appear in the following specification and ac` companying drawings, considered together or separately.

I have illustrated my invention in the accompanying drawings, in which,-

Figure 1 is a front elevation on a larger scale;

Fig. 2 is a side elevation;

Fig. 3 is a section on the line 3-3 of F ig. 1; and

Fig. 4 is a section on the line 4-4 of Fig. 1.

1n all of the .above views, like parts arel designated by similar reference characters.

In the drawings, 1 designates the body of a reproducer. The body is preferably made cylindrical, and the front face is recessed as at 2. The rear face, of the body is provided with an annular iange 3, which forms a cylindrical ocket 4.

A diap iragin 5 is supported in the recess 2, between annular cushions 6, 6. The recess 2 and pocket 4 are in communication by means of an opening 7. The cushions` and diaphragm are secured in osition hy means of e flat annulus 8, which 1s attached to the body 1 by means of screws.

A stylus carrier 9 is provided with an arm 10, at the extremity of which is a disk 11. A

` screw 12 .passes through the diaphragm at its center, and enters the disl 11, thereby firmly and removably securing the diaphragm and stylus carrier together., The 'body of the stylus carrier is provided with wings 13, 13, which project in o posite directions inthe plane of and parel el with the bod portion and transversely of the axis thereo and the extremities 14 and 15 of the wings are extended or projected in opposite directions and outside of or beyond the pivot screws.

Extending from one side of the body 1 is a block 16, through which two conical- 'pointed pivot screws 17, 17 extend. The

conical ends of the screws engage conical recesses 18, 18, formed in and located at about A the longitudinal center of the wings 14, 15, and beyond the oppositely extended portions thereof, and which recesses or bearings are somewhat larger than the points ot' the screws, to allow movement. of the stylus in any direction relatively to the screws. The opposite ends of thescrews project from the opposite side of the block 16 and are provided with suitable nicks to receive a screwdriver whereby the screws may be adjusted. Screws 19, 19 are threaded in the, block 16, and extend through the oppositcly extended portions or extremities 14 and 15 of the wings 13, and helical springs 20 are interposed between the heads of the screws and the wing through which the screw passes.

It will be seen that by this arrangement the screws 19 are located beyond or out of alinemcnt with the/pivot screws and are positioned on opposite sides of a straight l1ne drawntlirough the centers of the pointed pivot screws 17. By this means, when the extremity 14 of a wing 13 is depressed by setting up one screw 19, the stylus carrier will be inclined to iex the diaphragm in one direction, and when the extremity 15 is depressed by setting up on the other screw 19, the diaphragm will be fiexed in the other direction. By this means the diaphragm may be given the exact initial tension desired.

rl`he helical springs 20, being located onl opposite sides of the rocking points ot' the sire to have it understood that the same mayr be empio ed in a recorder, and in the foilowing c aims I employ the termvrep'ro` (notA duecr as meaning either a recorder or reproducer.

The operation of my improved device will be obvious from the above description.

In zucordance with the provisions of the patent statute, l have described the principle ol my invention, together with the apparatus, which I now consider to represent the best embodiment thereof, but I desire to have it understood that the apparatus shown is merely illustrative, and that the invention can be carried out in other ways without departing from the .spirit of the invention.

Ha ving now described niyvinvention, what claim as new and desire to secure by Letters Patent of the United States, is as follows:

l. A reprodueer, comprising a cylindrical body, a diaphragm mounted therein, a block fixed to and projecting from the body. conical pointed pivot screws tit-ted in said block and projecting` from opposite sides thereof, a stylus carrier fixed to said diaphragm and extending over and beyond said block and provided with laterally and oppositely extending wings overlying said bloeit in the plane ot' and parallel witlrand transverselyY vof the axis of the body portion and engaging the conical points or said pivot screws, the ends of said wings projecting beyond said pivot screws and provided with oppositely extended portions projecting upon opposite sides of the line of said pivot screws, screws lixed in said block and passing through openings in the oppositely extended end portions ot' said wings, and springs fitted upon Isaid screws between the heads thereof and said wings. l

2. A reproducer, comprising a cylindrical body, a diaphragm mounted therein, a block fixed to and projecting'froin the body, coni` cal pointed pivot screws and projecting 'from 'opposite sides thereof, a stylus carrier fixed to said diaphragm and extending over and beyond said block and fitted in said block.

provided with laterally and oppositely exl tending wings overlying said block in the plane of and parallel with and transversely of the axis of the body portion and engaging the conical points of said pivot screws and provided 1with oppositely extended portions projecting upon opposite sides of the line of said pivot screws and located outside of the limits of said screws, screws fixed in said block and passing through openings in the oppositely extended end portions of said Wings, and springs tted upon said screws between the heads thereof and said Wings.

This specification signed and witnessed,

this 29 day of March, 1916.

J OSEPH WOLFF. lfltnesses:

JACOB SGHECHTER, JOHN L. LoTsoH. 

